Resumen

ROSENBERG, Paula  y  PALMA, Sergio. Cladocerans in Patagonian fjords and channels, between the Penas Gulf and Strait of Magellan. Investig. mar. [online]. 2003, vol.31, n.1, pp.15-24. ISSN 0717-7178.  http://dx.doi.org/10.4067/S0717-71782003000100003.

In the Chilean region of Patagonian fjords and channels between the Penas Gulf and the western mouth of Magellan's strait, Evadne nordmanni, Podon leuckarti and Pseudoevadne tergestina cladocerans were identified. The analyzed organisms were captured with Bongo nets through oblique hauls between 200 m of depth to the surface, in 41 oceanographic stations. The most abundant species was E. nordmanni, followed by P. leuckarti and P. tergestina present only in Messier and Concepción channels. The highest densities of E. nordmanni and P. leuckarti were registered in the Messier channel and the Baker fjord, while the smallest densities corresponded to the oceanic waters stations. This distribution was associated with thermohaline gradients, estuarine circulation and depth. The association between cladocerans and the Modified Subantartic Water Mass was determinated

Palabras clave : cladocerans; distribution; fjords; Patagonian channels.

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